Stephen james coatney



S. J. COATNEY.

PLOW.

APPLICATION FILED JULY n. 1919.

4 ITO/M1578 Patented Mar. 9, 1920.

new and useful ImprovementsinPlov-vs, of

TED STATES PATENT OFFICE. 5

srnrnnnununs conrrmr, orrsnrows, c nu.napzernzn:"

119 all whom, it mayconccm; V V r s a Be it lniown that I, STEPHE'NI Jmns Oos'r- Xm", a. citizen. of theUni ted Statesnncl a. resident. of Fellows, in the COUJltYUfKI-Jlh and State of California, have made certain which the following is o specification.

My invention relates to plows of the wheeled or sulky type, and particularly to wheeled plows of that character-in which provision is made for raising and lowering the plow'with relation to the supporting wheels mid-lockingthe implement in up and down and intermediate positions.

An object of invention is'tlle provision of it simple" end cfiicient plow" elevating 3 mechanism whichincludes cone piece axle forinedas to efi'ectflthc raising and low ci'ingof a. plow' bygone operating lever and without disturbing the position of-the plow frame, so that messed-ire of the vertical adjustment of thcplow, the heme maintains its normal leveL The manner in which the onepiece axle isbcnt is such as to eliminate numerous ports, which have heretofore been necessary to the successful operation of an elevating mechanism, thus providing n mechanism having that desirable ohcmcteristio which allows of its pro (lllCtiOI'l at a minimum cosh Another object of my invention is the provision of en elevating mechanism which raises or lowers one of the supportuig Wheels simultaneously with-the movement of the plow.

tion one form of plow embodying my in.

vention with the plow in elevated position;

Fig. 2 is a top plan view of iFig. 1

Fig. 3 is a view similar to-E ml th the plow in lowered position; j

Fig. 4 is a detailed view ing means between the axle and the operat ing lever; V

Fig. 5 is a detailed perspective of one form of axle embodying .my invention.

Similar reference characters to am:- lcr parts in each of the several news.

Referring specifically tothe drawings, F designates a frame comprising the parallel portions 15 and 15, which are connected at their rear ends by a transverse portion 16.

tion of such shaft which is r i V the plow P I will describe one form of plow embodyof the connectk T ame ;inces ant, Perms ,sgi'sizol Applicaticnfiled m n, 191s. *S'erlalfl'o'. s ren;

-rlf1nd1akgs11t the V iel' i-iortions 15 111x115 are a, pair ot'brackportzonofths axle A which disposedbetween the parallel portions 15 and 15 is bent to provide acrank 17, while that p013 disposed on the cutcrside of the portion 15 is also bent to provide a. relatively large crank 18 upon which the wheel W is journalecL;

1 Pivotclly connected to the cranlr i? isn bracket 1'9, which is cdinstably mounted.-

upon the forward end-of a, plow beam 20 of n plow P. Asshown in 19 may besdjusted long'tudmclly upon the lploiv benm 2 0 by placing the screw bolt of the bracket inchy one of the perforations 21' forinedi in the plow beam -20. The rear end of the plow beam is movah'ly' supported upon the {ru ns F by means of-a crankshaft- S, which 1S mu-nnled in bearhig plates 22,

7 its intermediate -po rtion being pivotally connected to the bracket '23. i

To support the rear end of the plow frame, I provide a yoke 24 which is secured .to the transverse portion 16 of the frame plow bee-in 20 by means of a F, in which is journaled the shaft 25 carrying at its lower end a caster wheel 26.

By, actuating the axle A to raise and lower and the wheel W, I provide on operating lever L; which is fixed-to the axle L" by means ofsa divided sleeve 27 which is chunped'about the-axle and locked against movement thereon by means of a, set screw 28, as clearlyshown'in Fig: 4. To effect a lo'c-lging of the axle A in up and down and intermediate positions, I provide a. segmental rack R, which is secured to'the B01:-

tion. '15 of the frame F. The lever formed'of-s resilient metal to permit-longi- Ttudinal flexing thereof, so that in movingthe axis A from one adjusted position to the other, the lover L can be moved out of and into engagement with the teeth of the rack R by bending the same outwardly from the frame without disturbing its connection with the axle. After the lever has moved between any two adjacent teeth of the rack R the inherent resiliency of the metal of which it is formed, will maintain the lever in locked position between thececth; that is to Fig. 3 the bracket say, the lever'L is normally biased into ongagement with the rack R and to move the lever to releasing'position it is necessary to bend the lever against its bias.

The lever L is of such a length that it may be readily moved to its variousposi- 'tions by an operator located on a seat 29, eupported' between the-parallel portions of frame F by a yoke 30. To confine the lever L' within it restricted zone during its movement from one position to the other, I provideo guide bar 31, which is of a. shape corresponding to the rack R and is disposed 'sliphtlybelow the some.

he opemtionoftheplow is as follows: .Aeshown in Fi 1, the plow P occupies its uppermost ositlon. When it isdeslred to lower the p ow to the position shown in Fig. 3, or to any intermediate position, the lever L is released from the rack R and then moved forwardly to the desired position where it again engages the rack R and is locked against further movement. During this forward movement of the lever L, the axle A is moved. in a clockwise direction. thus causing the crank 17 to lower the forward and of the plow'beam 20 and. thereby importing a correspondin movement to the crank shaft, S, so that t e rear end of the low beam and consequently the plow B is a so lowered. By virtue of the. small crank 18, the wheel W is simultaneously lowered with the lowering of the low. The purpose of adjusting the whee W simultaneously with the plow P is to meiotain the frame F at is normal level during the plowing operation. I?! virtue of the disposition of tie plow 1 1e wheel W will ride into the plowed portion of the ground, so that without this vertical adjustment the wheels W and V would move in different planes and thus cause the frame F. to assume an inclined position. It willtherefore be seen that irrespective of the position of the plow P, the frame F will maintain its normal level. When raising the plow P, it will be obvious that the lever L will be moved. in the reverse direction or rearwurdly, so that the axle A. and the shaft S are rotated in-o counter-clockwise direction.

From the fore oing description it will be manifest that I ave provided an elevating mechanism for the low and one of the $11111 porting wheels which is extremely simp e in its construction, and which may be uperated to effect any desired adjustment of the plow and Wheel by the actuating of :1. single lc'ver. The forming of the axle A of one piece and providing the sumo with the two cranks to cll'ect an adjustment. of the plow and one supporting wheel simultaneously is one of the important. features of my invention. Another important feature is the fact that the frame is maintained in its normal level at all times irrespective of the adjustment of (he plow.

Although I have herein shown and described onl one form of plow embodying my invention, it is to he understood that various changes and modifications may be made herein without departing from the spirit of the invention and he spli'li mnl sfl-CUQ oi the uppcnd d claims.

l: living described my invention. what I cluim is z t '1. A. wheeled plow, comprising u frame, an axle journalcd in the frame. wheels jouruuh-d ms the ends of said axle, a plow, u crank shaft jouruoled on ilic tin-me and piv otull} connected to the beam of said plow, and on operating; lever connected to said axle and cupublo of occupying two extreme positions, said axle being formed with cranks, one of which is connected to said beam ulnar-by said plow and. one oi enid wheels are raised or lowered uccording as said lever occupies one extreme position or th e Y other.

2. A. wheeled plow, comprising a. StillSliillltiully U-shcpcd frame. an axle journulcd in the frame adjacent the free ends thereof". said axle being formed with u crank he tween the parallel portions of the frame, a second crank ui; a point exterior-1y oi the frame, u wheel journulcd on the end of raid second crank portion of suid uxlc, :1 second wheel journelcd on the opposite end of" said u-xle at a point exterior-1y of said frame, u crank shuit journuled in the opposite end oi the frame from said axle, u plow, on extension formed on the beam of said Jlow and pivotully connected to said crank slmft, u second extension formed on said plow beam and pivot-ally connected to the first crank of said axle and means for rotating said axle.

STEPHEN J AMES COATNEY.

till

ill 

